[WIP][turbofan] Instruction scheduler for Turbofan.

src/globals.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_GLOBALS_H_
 #define V8_GLOBALS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 12 matching lines @@
 # include <limits>  // NOLINT
 # define V8_INFINITY std::numeric_limits<double>::infinity()
 #elif V8_LIBC_MSVCRT
 # define V8_INFINITY HUGE_VAL
 #elif V8_OS_AIX
 #define V8_INFINITY (__builtin_inff())
 #else
 # define V8_INFINITY INFINITY
 #endif
 
+#if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X64 || \
+    V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_ARM64
+#define V8_TURBOFAN_INSTRUCTION_SCHEDULING 1
+#else
+#define V8_TURBOFAN_INSTRUCTION_SCHEDULING 0
+#endif

[Jarin, 2015/11/24 11:43:03]

I think it would be better to remove this and instead introduce
instruction-scheduler-xyz.cc for each architecture.

[baptiste.afsa1, 2015/12/01 09:08:43]

Done.

+
 namespace v8 {
 
 namespace base {
 class Mutex;
 class RecursiveMutex;
 class VirtualMemory;
 }
 
 namespace internal {
 
@@ skipping 989 matching lines @@
   kind = static_cast<FunctionKind>(kind | FunctionKind::kInObjectLiteral);
   DCHECK(IsValidFunctionKind(kind));
   return kind;
 }
 }  // namespace internal
 }  // namespace v8
 
 namespace i = v8::internal;
 
 #endif  // V8_GLOBALS_H_